Door and window lock



F eb'. 20, 1923,

H1. KNoPKE.

' DooR AND wlNnow LOCK.

2 SHEETS-SHEET 'FILED APR-11,1922.

/ll 7 K HJKNUPKE Feb. 2o, 192s.

l 1,445,959. H. J. KNOPKE. l

DOOR AND WINDOWLOCK.

,msn APR. n, |922. 2 SHEETS-sum 2..

b HJZQVUPJ@ Patented Feb. 2Q, i923..

g l n miserie unirse stares rareiarorricr..

HARRY J. KNO'PKE. or'RACrNE, WISCONSIN.

DOOR AND WINDOW LOC-K.

Application filed April 11, 1922. VSerial No. 551,450.

To all whom it may cof/cern Be it lrnown that I, HARRY J. KNOPKE, acitizen of the United States, residing at Racine, in the county ofRacine and State of `Wisc0nsin, have invented certain new and usefulImprovements vin Doorv and lVindow Locks, of which the following is aspecification.

Thisinvention relates to locking devices. and especially to an improveddoor and window lock, the same being of the vclass known as closurefasteners,-braces,-portable. @ne object of this invention is to providea device ofthis characterhaving excessive strength consistent `withcomparative lightness and compactness.

Another object is to provide a device'of 4this character in which thebrace or prop operates to automatically 4re-engage its keeper intheevent it is` accidentally or purposely vdisengaged therefrom but notmoved to the position for securing itin the inoperative or foldedposition.

Another object is to provide a device of this character with frictionalmeans for securing itssprop in the inoperative and'outof-thewayposition. f

Anotherl object is to provide a device of this character in which themain body or frame portionis formed of a single blank of sheet metal, sothat the device can be manufactured at the minimum cost.

' Other objects and advantages willl be pointed out or implied in thefollowing details of description, in connection with the accompanyingdrawings in which:

Fig. l is a side elevation 4of the device, in one of its forms, foldedfor convenience in carrying or packing for shipment.

Fig. 2 is a top plan view of the device shown in Fig. l, a partbeingshown in horizontal section.

Fig-3 is -a vertical sectional view showing the device applied 'as adoor-lock o-r fastener. 1

Fig. et is anenlarged dctailfview for more clearly showing the eccentricarrangement for effecting the result mentioned in the third paragraph ofthe foregoing statement ot' the objects Fig.` 5 .is va yside elevationof` yav slightly modified formy of the invention applied to a door, thedoor-,and lfloor being shown in section.

Fig. 6 is an enlarged detail view showing a longitudinalsection and avtransverse secvtion of anabutinent formed from a blank of sheetmaterial.` v

Fig. 7 s -a side elevation of another modified form ofthe invention, thesame beingA ing shown vin section. n

F 1- 8 1S a Op plan view of the'device shown 1n Fig. 7.

.pplied to a window, parts of the latter be- Fig. 9 is a longitudinalverticaly section of thedevice shown in Figs.` pawl or prop beingomitted.

Fig. l() is a plan view of the base or at'- tachingplate of the deviceshown in Figs. 7,8and9. ,l y v F ig. l1 is a planview of a blank to formthe main body or frame of the device shown in Figs. 7, 8, v lReferringto these drawings in detail, lin which similar referencevcharacters correand 8, the

Spond to similar parts throughout the sevmaterial, as shown at 2@ inFig. 6 although 1t is shown as a bloc-kin thel other figures y ofthedrawings. The pawl or prop y3 is preferably of'strong andrigid-meta'lAand formed with a cylindrical endll which is eccentricallyapertured atto vreceive and swing on apin orpivo-t 6 `which entends through'theparallel walls of the channelbar which constitutes the body` l, lb. l".

presently be explained, and itl is in these projections of the wallsthat `'the pivot-6:15

plies, literally, to the form shown vin Figs.

l, 2- and 3,`but thesame principle is em-y ployed 'in the othe'rforms,as will presently.

is united with va securing strip Aor-"plate-.S which extends past theadjacent ends of the channel-walls andthence turns at right angles tothe floor for engagementwith the lower edge of the door;` but the.connecting f These walls of the channel-bar lare proj ected beyond thefloor bottom or connecting plate l of the channel-har fora purpose whichwill secured: However,' this description only afpw iio` plate terminatesat l0v as it ydoes in. Figs.l l

appear i Forinstance, in Fig. A5 the floorziy and 3. Spurs gage orpierce 11 may be provided to enthe lower edge of the door and cooperatewith a screw 12 for securing this form of the invention inA place. lnlieu of the elements 8, 9 and 11 of Fig. 5, I may provide a stud or boss13 (Figs. 1, 2, 3, 4) which may be seated or fitted in a cavity .madefor receiving it in the door (see Fig. 3). This boss is preferablyunited with a pin or rivet 14 which extends through registeringapertures in the members 1LL and 2 for uniting these members with oneanother and with the boss 13. When thus united, they become a unitaryunchanging member, and are made separately, instead of integrally, foreconomy of manufacturing. The member 13 cooperates With the screw 12 forholding the device in the door.

Referring now to Fig. 4, it Will be seen that the pivot 6 is furtherfrom the periph ery of the lower side of the cylindrical part 4 than itis from the upper part; or in other Words, the e-ccentricity of thepivot 6 is such that When the paivl or prop 3 is in its operativeposition (Fig. 3) it is free to move by gravity, so that if the door ismoved past its normal closed position, the pawl will automaticallyengage its keeper when it returns to the normal position. On the otherhand, when the pavvl or prop 3 israised or swung tol the folded positionshown in Figs. 1 and 4, it Will (because of its eccentricity)frictionally engage with the concaved end or frictional detent 16 or16a, and especially With the lower rend thereof, and bind the pawl orprop in its folded position. The eccentricity of the pin 6, with respectto the cylinder 4, is only a few thousandths of an inch, and isexaggerated in the drawings for the sake of obviousness; so if thedevice is accurately constructed, this frictional binding effect wouldobtain in'consequence of the slight'yielding of the comparatively rigidelements even if the connecting plato? extended to the end of theabutment 2; but to provide for ypossible! inaccuracies of manufacture, Imay extend the comparatively springy end 16'CL beyond the end'lUof theHoor or connecting plate 7, thus providing a clearance for permittingthe part "16a to yield to the pressure of the eccentrically pivotedcylindrical end 4. An aperture 17 is provided in the connecting plate -7of the device shown 'in' Figs. 7 to 11 inclusive, this apertureproviding the clearance for the frictional detent 16a f In the formillustrated in Figs'. 7 to 11 inclusive, a plate or base -18 is providedWith screvvholes 19 through Which screws 20 may be passed for securingthe device tothe upper part of a Window-sash, as shown in Fig. 7. Fig. 9shows this plate pivoted to the body 1c and abutment 2 by means of arivet 14 Whose head 13 is imbedded in the lower sash for cooperatingwith the screws 2O for securing the device against displacement. Therivet 14 extends through registering' apertures 21 and 22 ot' the plates18 and 7 and the pivot 6 extends through apertures 5 as it does in theother forms of the invention. The floor or plate 7, of this form of theinvention, preferably formed .vith arcuate Wings 23 which are preferablystruck upfrom openings 24 of the blank shown in Fig.

11. ln this 'ligure the openings 24 appear as mere arcuate slits, butwhen the blank is formed by bending along the lines b, for making theparallel Walls of the channel-bar or-body 1C, then the slits 24 areopened to form the openings 24 of Figs. 7 and 9.

vThese Wings 23 combine with the intervening part of the connectingplatetoform a circu-v lar plate or disk Whose perimeter' registers With themain marginal portion of the plate 18, thusproviding symmetry andstability.

For the purpose of co-operating with the elements 3 and 15 in securingthe upper and lovver sashes against relative movement., and for thefurther purpose of preventing rattling of the sashes, l. provide anangular extension 24a of the connecting plate 7, and a slot or recess 25is formed in the upright part of this extension for engaging a screw orkeeper 26. The recess is open at Aone edge of the part 24a so that itpasses intoengagement with the keeper 26 Whe-n the body 1c is swungaround on the base 18, provided the sashes have first been placed in theproper relation to one another. The keeper 15 rof Figs. 3, 5 and 'T maybe (and is preferably) in the form of a cylinder-headed screW,.as shown,the top thereof being Hush with the' surface in whichl it is imbedded. f

It is not intended to limit this invention tol the exact constructionand arrangen'ient here shown and described, but changesmay be madeWithin the sco-pe oi the inventive idea as implied and claimed.

lllhat'l. claim as my invention is: y

1. In a door orivindoiv t'astener, the combination of an elongatedmember which is channelfshaped in cross-section and provided with meansto secure it to a door or '\vindoi\v, a keeper securable to a floorr`orother object near the door or Window, a pro-p formed With acylindrical end kwhich is pivotally mounted in one end of said'channel-shaped member, the other endof sjaid pro-p being engageablewith said keeper, and an abutment having a concaved end and beingsecured in -said channel shaped member in such position that itsconcaved end is in contiguity With said cylindrical end and adapted tobear against the latter for the purposes specified.

2. The combination defined inclaim 1, and a fastening member includinga. shank and a cylindrical head, the latter being sea-table in acylindrical cavity in the door or Window for aiding in securing thefastener on the door or Window, said shank being extended isoV 5 centricto the periphery of said cylindrical end, substantially as shown andforthe purposes specified. v

4. In the combination defined in claim l, the channel-shaped memberbeing formed l0 with ay clear space at the opposite side of the saidconceived end from said cylindrical end, substantially as Shownand'for-,the pur- Y pose specified.

5. yThe Combinationdefinedbyoiaim i a 'base on ywhich the saidchannel-shaped member is 'pivotally mOunted,-a-nd a Second" keeper,means being pro-vided for connecting said' channel-shaped member ,Withsaid Second keeper. i

In testimony whereof I aix my signature. 20

` HARRY J."KNOPKE.-

